Base your answers on the diagram and data table below. The diagram shows the equipment used to determine the factors affecting the rate of erosion in a stream. The data table shows the time it took a 10-gram sample of quartz sand to move 100 centimeters down the rain gutter under various conditions.
What is the relationship between the water velocity and the rate of erosion?
(1 point)
Responses
If the water velocity remains constant, the rate of erosion increases.
If the water velocity remains constant, the rate of erosion increases.
If the water velocity increases, the rate of erosion increases.
If the water velocity increases, the rate of erosion increases.
If the water velocity decreases, the rate of erosion increases
If the water velocity decreases, the rate of erosion increases
If the water velocity remains constant, the rate of erosion decreases.
In this experiment, the water velocity could be increased by(1 point)
Responses
widening the rain gutter
widening the rain gutter
decreasing the slope of the rain gutter
decreasing the slope of the rain gutter
increasing the amount of water from the faucet
increasing the amount of water from the faucet
lowering the flexible hose
lowering the flexible hose
What is the relationship between the water velocity and the rate of erosion?
(1 point)
Responses
If the water velocity remains constant, the rate of erosion increases.
If the water velocity remains constant, the rate of erosion increases.
If the water velocity increases, the rate of erosion increases.
If the water velocity increases, the rate of erosion increases.
If the water velocity decreases, the rate of erosion increases
If the water velocity decreases, the rate of erosion increases
If the water velocity remains constant, the rate of erosion decreases.
If the water velocity increases, the rate of erosion increases.
Based on the given diagram and data table, we can determine the relationship between water velocity and the rate of erosion by analyzing the data. The data table shows the time it took a 10-gram sample of quartz sand to move 100 centimeters down the rain gutter under various conditions.
From the data, we see that as the water velocity increases, the time it takes for the sand to move decreases. This means that higher water velocity leads to a faster rate of erosion. Therefore, the correct answer is:
If the water velocity increases, the rate of erosion increases.
To increase the water velocity in this experiment, we have several options. The diagram and equipment used to determine the factors affecting the rate of erosion in a stream hint at the possible methods to increase water velocity.
The options mentioned are:
- Widening the rain gutter: By increasing the width of the gutter, the cross-sectional area available for water flow increases, potentially leading to higher water velocity.
- Decreasing the slope of the rain gutter: A steeper slope allows for faster water flow, resulting in higher water velocity.
- Increasing the amount of water from the faucet: By increasing the flow rate of water into the system, more water will flow through the gutter, leading to higher water velocity.
- Lowering the flexible hose: Lowering the hose allows gravity to assist in the flow of water, increasing the water velocity.
Therefore, the correct answer is:
All of the mentioned options can increase the water velocity in this experiment.